MUTILLA. 277 



becomes gradually wider towards the apex and is confluent with the second ; the base 

 is toothed. The sides of the second segment bear large punctures ; the middle of this 

 segment, and also the others, being impunctate, but rough. The basal ventral segment 

 is ferruginous, and broadly toothed in the middle ; the second segment is coarsely 

 punctured ; the other ventral segments are not so strongly punctured, and they are 

 fringed with golden hair. The pygidium is rough, black, and laterally bears long 

 fulvous hair. In addition to the golden pubescence, the dorsum of the abdomen bears 

 long black hair. Legs black, covered with white hair ; the calcaria white ; the apices 

 of the tarsi ferruginous. 



2. Males, of which the females are unknown. 



i. Fore wings with three cubital cellules. (Species 21-39.) 



* Abdomen entirely ferruginous, or with the base more or less blackish; the head, 

 thorax, and legs black ; the wings smoky. (Species 21-38.) 



f The basal segment of the abdomen black. (Species 21-33.) 

 v/ 21. MutQla amillSB. (Tab. XIII. fig. 3, <j organ.) 



Long. 20 millim. $ . 



Hab. Mexico, Amula in Guerrero 6000 feet (H. H. Smith). 



Head punctured rather strongly, much narrower than the thorax, densely covered 

 with long griseous hair, which almost hides the sculpture, the hair being especially 

 long immediately below the antennae ; the clypeus smooth and shining ; the mandibles 

 ferruginous before the apex. The eyes large, the incision wide ; the head not much 

 narrowed behind them. The scape of the antenna? punctured, sparsely haired ; the 

 third and fourth joints subequal. The pronotum densely covered with griseous hair, 

 punctured, the apex broadly arcuate. The mesonotum at the base thickly covered 

 with griseous, at the apex more sparsely with fuscous, hair ; reticulated throughout, 

 and with two furrows down the centre. The tegulse large and shining, produced 

 behind, the apex not much raised, the base punctured ; the mesonotum not exca- 

 vated alongside of them. The scutellum moderately concave, reticulated, bearing long 

 pale hair. The median segment above with only a slight slope, the apex abruptly 

 oblique ; reticulated, a V-shaped area at the base, which is thickly covered with silvery 

 pubescence, the rest of the segment with long fuscous hair. The mesopleurse not very 

 strongly punctured, and densely covered with pale pubescence ; the raetapleurae stoutly 

 reticulated. The basal segment of the abdomen punctured, covered with long white 

 hair ; the second segment shining, the middle impunctate, the rest of it with widely- 

 separated punctures ; the sides and apex with rufo-fulvous hair. The other segments 

 finely punctured at the base ; the apex with rufo-fulvous hair. The pygidium rather 



